Radiative and non-radiative decay kinetics of (CdSe)N (N = 3 and 4) clusters

2019 ◽  
Vol 151 (6) ◽  
pp. 064306 ◽  
Author(s):  
Yujuan Xie ◽  
Shengping Yu ◽  
Li Zhang ◽  
Ning Du ◽  
Mingli Yang
Keyword(s):  
Radiative Decay ◽  
Decay Kinetics ◽  
Kinetics Of

Luminescence and decay properties of the 1D2 level of Pr3+-doped YPO4

2011 ◽  
Vol 89 (3) ◽  
pp. 415-422 ◽  
Author(s):  
J. Collins ◽  
M. Bettinelli ◽  
B. Di Bartolo
Keyword(s):  
Low Temperature ◽  
Temperature Dependence ◽  
Radiative Decay ◽  
Spectroscopic Properties ◽  
Decay Rates ◽  
Decay Kinetics ◽  
Population Redistribution ◽  
Individual Crystal ◽  
Decay Properties ◽  
Kinetics Of

This investigation reports on the spectroscopic properties of trivalent Pr in YPO4. In particular, we show how the luminescence from the 1D2 level depends on the polarization of the emission and on the temperature of the sample. We also report on the decay kinetics of the 1D2 level, which show the lifetime decreasing as temperature is increased. Our observed lifetime of 440 µs is at low temperature and is significantly longer than that reported by other workers. We explain the temperature dependence of the 1D2 emission by considering the population redistribution in the 1D2 level, without invoking the existence of multiphonon relaxation. Finally, we estimate the radiative decay rates of individual crystal field levels within the 1D2 manifold.

scholarly journals Electric field dependent radiative decay kinetics of polar InGaN/GaN quantum heterostructures at low fields

2009 ◽  
Vol 94 (21) ◽  
pp. 211107 ◽  
Author(s):  
Emre Sari ◽  
Sedat Nizamoglu ◽  
In-Hwan Lee ◽  
Jong-Hyeob Baek ◽  
Hilmi Volkan Demir
Keyword(s):  
Electric Field ◽  
Radiative Decay ◽  
Decay Kinetics ◽  
Field Dependent ◽  
Kinetics Of ◽  
Quantum Heterostructures

Spectra and decay kinetics of trimethyldioxetane chemiluminescence

1975 ◽  
Vol 34 (2) ◽  
pp. 326-331 ◽  
Author(s):  
Irene Simo ◽  
Joachim Stauff
Keyword(s):  
Decay Kinetics ◽  
Kinetics Of

Picosecond decay kinetics of CdS luminescence studied by a streak camera

1979 ◽  
Vol 31 (4) ◽  
pp. 253-256 ◽  
Author(s):  
T. Kobayashi ◽  
Y. Segawa ◽  
S. Namba
Keyword(s):  
Streak Camera ◽  
Decay Kinetics ◽  
Kinetics Of

Decay Kinetics of Electron Emission from MgO Films in AC Plasma Display Panels

2008 ◽  
Vol 1 ◽  
pp. 091203 ◽  
Author(s):  
Takeru Okada ◽  
Takashi Furutani ◽  
Toshihiro Yoshioka
Keyword(s):  
Electron Emission ◽  
Decay Kinetics ◽  
Plasma Display Panels ◽  
Plasma Display ◽  
Kinetics Of

scholarly journals Temporal patterns of damage and decay kinetics of DNA retrieved from plant herbarium specimens

2015 ◽  
Author(s):  
Clemens L Weiß ◽  
Verena J Schuenemann ◽  
Jane Devos ◽  
Gautam Shirsekar ◽  
Ella Reiter ◽  
...  
Keyword(s):  
Dna Fragmentation ◽  
Dna Degradation ◽  
Herbarium Specimens ◽  
Decay Kinetics ◽  
Strand Breaks ◽  
Last 300 Years ◽  
Computational Procedures ◽  
Breaking Points ◽  
Kinetics Of ◽  
Historical Nature

Herbaria archive a record of changes of worldwide plant biodiversity harboring millions of specimens that contain DNA suitable for genome sequencing. To profit from this resource, it is fundamental to understand in detail the process of DNA degradation in herbarium specimens. We investigated patterns of DNA fragmentation -length and base composition at breaking points-, and nucleotide misincorporation by analyzing 86 herbarium samples spanning the last 300 years using Illumina shot-gun sequencing. We found an exponential decay relationship between DNA fragmentation and time, and estimated a per nucleotide fragmentation rate of 1.66 x 10-4 per year, which is ten times faster than the rate estimated for fossilized bones. Additionally, we found that strand breaks occur specially before purines, and that depurination-driven DNA breakage occurs constantly through time and can to a great extent explain decreasing fragment length over time. Similar of what has been found analyzing ancient DNA from bones, we found a strong correlation between the deamination-driven accumulation of cytosine (C) to thymine (T) substitutions and time, which reinforces the importance of substitution patterns to authenticate the ancient/historical nature of DNA fragments. Accurate estimations of DNA degradation through time will allow informed decisions about laboratory and computational procedures to take advantage of the vast collection of worldwide herbarium specimens.

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